Aastra OpenPhone 61 User Guide OpenPhone 60/60 IP on Aastra 800 and OpenCom 10 - Page 38
Making Calls
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Making Calls 2. Making Calls General Functions 2.1 General Functions 2.1.1 Internal and External Telephone Numbers The internal number of your telephone is assigned when you configure your communications system. The telephone number is linked to the call key of your telephone, which means you receive calls on this key. You can have several internal telephone numbers on different call keys on the OpenPhone 63 and the OpenPhone 65. The external telephone number(s) at which you can be reached is (are) assigned to the call key(s) (with the internal number). External telephone numbers Call distribution scheme Internal telephone numbers on the call keys 4701 1678 4701 1234 4701 1345 4701 1456 47 Telephone 1 48 49 Telephone 2 50 OpenCom 100 51 Telephone 3 Example of the assignment of internal and external telephone numbers The above example shows that the system's external telephone numbers are first stored in the OpenCom 100 / Aastra 800. The telephones can be reached selectively by means of call distribution of the numbers to the internal numbers (call keys). As you see, telephone 1 and telephone 2 both ring when a call is made to the number "4701 1234". At the same time, telephone 1 can also be reached on the number "4701 1678". 34